1N5354BE3/TR12

Overview

The Microchip Technology 1N5354BE3/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 17 V and ±5% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5 µA at 12.2 V and a dynamic impedance of 2.5 Ω at a test current of 70 mA. The component utilizes a T-18 axial lead package and is supplied in tape and reel format.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and exhibits minimal voltage change versus current
• Features flexible axial-lead mounting terminals for through-hole integration

Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• High surge stress environments
• Applications utilizing flexible axial-lead mounting terminals

Procurement Notes

Verify the manufacturer origin as the datasheet identifies Microsemi Scottsdale Division, while the model prefix implies Microchip Technology. Confirm RoHS compliance status via the e3 suffix and ensure the TR12 designation matches the required tape and reel packaging specifications before procurement.

Selection Notes

Select this component for applications requiring a 17 V reference with tight ±5% tolerance. Ensure adequate heat sinking is provided to maintain operation below the 25°C junction-to-lead thermal resistance limit. Verify that the T-18 package dimensions fit the target PCB layout constraints.

Part Context

This device belongs to the JEDEC registered 1N5333B through 1N5388B series of axial-leaded 5.0 watt Zeners. The series offers a wide selection from 3.3 to 200 volts with various tolerance options identified by specific suffix letters on the part number.

Replacement Considerations

Consult the official datasheet for verified substitute part numbers within the same series or equivalent military screening levels.